Firestone UNA-Clad metal siding in Medium bronze with Kynar finish.
dark bronze metal siding, but not anodized like window frames.
beam in house
dark bronze window frame w/ anod alum siding
dark bronze window frames with anod alum siding
anod alum windows and siding
great ref for roof plus siding material
matching anod alum siding and windows
siding trim detail around window